The WMP, which stands for Walther Magnum Pistol ... the necessary hardware to use them. The optics slot is 2.20" long, which allows for a variety of red-dot makes and sizes to be used with ...

22 WMR cartridge, but Walther Arms seems to have done it with its WMP. Check out our full "American Rifleman Television" Rifleman Review segment above to see the details on this handy, easy-to ...